This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX240, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI160 Standard Cylinder SI160BX240
The AirTAC SI160 Standard Cylinder SI160BX240 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 240mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX240, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX240
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI160 Standard Cylinder SI160BX240
The AirTAC SI160BX240 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 240 mm stroke. It delivers a substantial 10053 N push force at 0.5 MPa, utilizing a G3/4 air port and an M36x2 piston rod thread. As the SI series has reached end-of-life, AirTAC provides the direct replacement: the SAI160BX240. It shares the identical ISO 15552 mounting interface, bore, stroke, output force, and port size, fitting seamlessly into existing fixtures.
The SAI160BX240 upgrade introduces an advanced piston seal with two Y-shaped one-way elements, ensuring low start-up pressure and extended service life. This specific SKU includes the -B SUS304 stainless steel piston rod for superior corrosion resistance, but because it lacks a magnet, it cannot accept position sensors. Note that a standard cylinder will drift on air loss; for load holding, consider the SAIL or BSAI lock variants.
Airtac SI160 Standard Cylinder SI160BX240 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX240 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX240 |
| Bore size | Ø160 mm |
| Stroke | 240 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160BX240 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160BX240 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160BX240
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×240 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI160 Standard Cylinder SI160BX240 Is Used
Heavy Press Clamping
Generates up to 14074 N at 0.7 MPa to secure large metal stampings or heavy fabrication components during machining and welding operations.
Injection Mold Ejection
Delivers reliable high-force ejection strokes in large-scale molding machinery, benefiting from the 50 mm adjustable air cushions to decelerate heavy tooling.
Replacing the Airtac SI160 Standard Cylinder SI160BX240 with the SAI160BX240
To replace the discontinued SI160BX240, order the SAI160BX240, confirming the ISO 15552 mounting interface, 160 mm bore, 240 mm stroke, and G3/4 port. Because this version has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, select an SAI model with the magnet option. If downsizing, the 125 mm bore yields 6136 N push at 0.5 MPa; if upsizing, the 200 mm bore provides 15708 N. Remember that a plain double-acting cylinder does not hold load without live air, as the cushion only decelerates. For secure holding, explore the SAIL air-released lock or BSAI clamp-lock variants, or use an external pilot check valve. Since the 240 mm stroke is under 300 mm, severe rod-bending side loads are less of a concern, but always verify guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX240
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160BX240 FAQ
Yes, the AirTAC SI160BX240 is discontinued. The direct replacement is the SAI160BX240. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 240 mm stroke, force, G3/4 port, and mounting interface.
This double-acting cylinder uses a G3/4 air port. It delivers a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa the push force is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX240
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX240 replacement — usually within 7-8 hours.